Definitions

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun organic chemistry, pharmacology Acid form of vitamin A commonly used to treat acne vulgaris and keratosis pilaris.

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[t(rans–) + retino(ic acid) + –in.]

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Examples

  • Inspired by: Retin-A Micro (also known as tretinoin)

    NBCSports.com: Sports 2009

  • Inspired by: Retin-A Micro (also known as tretinoin)

    msnbc.com: Top msnbc.com headlines 2009

  • Serums and creams that contain the vitamin A derivatives retinol or tretinoin can help minimize the appearance of some wrinkles, but MedLine Plus says the jury still is out on how effective they actually are.

    LIVESTRONG.COM: Skin Care: Why Do We Wrinkle? 2010

  • The various forms tretinoin, tazarotene, adapalene available on prescription are all chemical derivatives of vitamin A.

    Simple Skin Beauty Ellen Marmur 2009

  • The Claims: Originally developed as an acne treatment by Dr. Albert Kligman in 1967, tretinoin was soon discovered to improve signs of photoaging, like wrinkles and brown spots, and help firm and smooth the skin.

    Simple Skin Beauty Ellen Marmur 2009

  • I was given an Rx for Ziana, which is clindamycin phosphate 1.2% & tretinoin 0.025%.

    Motherfucking Pharma JLK 2009

  • I was given an Rx for Ziana, which is clindamycin phosphate 1.2% & tretinoin 0.025%.

    Archive 2009-04-01 JLK 2009

  • Topical tretinoin, or retinoic acid, has also been prescribed to help prevent the recurrence of nonmelanoma skin cancers.

    Simple Skin Beauty Ellen Marmur 2009

  • The various forms tretinoin, tazarotene, adapalene available on prescription are all chemical derivatives of vitamin A.

    Simple Skin Beauty Ellen Marmur 2009

  • Topical tretinoin, or retinoic acid, has also been prescribed to help prevent the recurrence of nonmelanoma skin cancers.

    Simple Skin Beauty Ellen Marmur 2009

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